乙苯氧化脱氢过程中活性焦炭的结构和组成

Structure and Composition of Active Coke in The Oxydehydrogenation of Ethylbenzene

在乙苯氧化脱氢过程中,生成了一种活性焦炭,这是一种具有催化活性的物质。采用不同的分析技术,如燃烧实验、热解吸分析、电能谱、二次离子质谱和电子自旋共振的研究,表明醌/氢醌和(或)芳氧基/苯酚基团是催化活性中心。

In the oxydehydrogenation of ethylbenzene an active coke,formed in the course of the reaction,is the catalytically active material.By using different analyzing techniques,i.e. burning experiments,thermodesorption analysis,ESCA,SIMS and ESR studies,is showed that quinone/hydroquinone and/or aroxyl/phenol groups are the catalytically active cen- tres.